I slipped on a wet step last week (6 days ago) and hit my lower back on the hard edge of the upper skate step. I was able to get up and walk around, bend down and have no visible bruising. I am fine walking down steps but have slight pain I the right rear back area. I have been taking Advil at night but a pretty good during the day. It hurts somewhat when I sit for awhile. Should I just expect it to take awhile for the pain to abate?